1 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
4 /* ====================================================================
5 * Copyright (c) 2006 The OpenSSL Project. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
19 * 3. All advertising materials mentioning features or use of this
20 * software must display the following acknowledgment:
21 * "This product includes software developed by the OpenSSL Project
22 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
25 * endorse or promote products derived from this software without
26 * prior written permission. For written permission, please contact
27 * licensing@OpenSSL.org.
29 * 5. Products derived from this software may not be called "OpenSSL"
30 * nor may "OpenSSL" appear in their names without prior written
31 * permission of the OpenSSL Project.
33 * 6. Redistributions of any form whatsoever must retain the following
35 * "This product includes software developed by the OpenSSL Project
36 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
39 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
40 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
41 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
42 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
43 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
44 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
45 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
46 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
47 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
48 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
49 * OF THE POSSIBILITY OF SUCH DAMAGE.
50 * ====================================================================
52 * This product includes cryptographic software written by Eric Young
53 * (eay@cryptsoft.com). This product includes software written by Tim
54 * Hudson (tjh@cryptsoft.com).
60 #include <openssl/asn1t.h>
61 #include <openssl/x509.h>
62 #ifndef OPENSSL_NO_ENGINE
63 #include <openssl/engine.h>
65 #include "asn1_locl.h"
67 extern const EVP_PKEY_ASN1_METHOD rsa_asn1_meths
[];
68 extern const EVP_PKEY_ASN1_METHOD dsa_asn1_meths
[];
69 extern const EVP_PKEY_ASN1_METHOD dh_asn1_meth
;
70 extern const EVP_PKEY_ASN1_METHOD eckey_asn1_meth
;
71 extern const EVP_PKEY_ASN1_METHOD hmac_asn1_meth
;
73 /* Keep this sorted in type order !! */
74 static const EVP_PKEY_ASN1_METHOD
*standard_methods
[] =
76 #ifndef OPENSSL_NO_RSA
83 #ifndef OPENSSL_NO_DSA
96 typedef int sk_cmp_fn_type(const char * const *a
, const char * const *b
);
97 DECLARE_STACK_OF(EVP_PKEY_ASN1_METHOD
)
98 static STACK_OF(EVP_PKEY_ASN1_METHOD
) *app_methods
= NULL
;
107 i
< sizeof(standard_methods
)/sizeof(EVP_PKEY_ASN1_METHOD
*);
109 fprintf(stderr
, "Number %d id=%d (%s)\n", i
,
110 standard_methods
[i
]->pkey_id
,
111 OBJ_nid2sn(standard_methods
[i
]->pkey_id
));
115 DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_ASN1_METHOD
*,
116 const EVP_PKEY_ASN1_METHOD
*, ameth
);
118 static int ameth_cmp(const EVP_PKEY_ASN1_METHOD
* const *a
,
119 const EVP_PKEY_ASN1_METHOD
* const *b
)
121 return ((*a
)->pkey_id
- (*b
)->pkey_id
);
124 IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_ASN1_METHOD
*,
125 const EVP_PKEY_ASN1_METHOD
*, ameth
);
127 int EVP_PKEY_asn1_get_count(void)
129 int num
= sizeof(standard_methods
)/sizeof(EVP_PKEY_ASN1_METHOD
*);
131 num
+= sk_EVP_PKEY_ASN1_METHOD_num(app_methods
);
135 const EVP_PKEY_ASN1_METHOD
*EVP_PKEY_asn1_get0(int idx
)
137 int num
= sizeof(standard_methods
)/sizeof(EVP_PKEY_ASN1_METHOD
*);
141 return standard_methods
[idx
];
143 return sk_EVP_PKEY_ASN1_METHOD_value(app_methods
, idx
);
146 static const EVP_PKEY_ASN1_METHOD
*pkey_asn1_find(int type
)
148 EVP_PKEY_ASN1_METHOD tmp
;
149 const EVP_PKEY_ASN1_METHOD
*t
= &tmp
, **ret
;
154 idx
= sk_EVP_PKEY_ASN1_METHOD_find(app_methods
, &tmp
);
156 return sk_EVP_PKEY_ASN1_METHOD_value(app_methods
, idx
);
158 ret
= OBJ_bsearch_ameth(&t
, standard_methods
,
159 sizeof(standard_methods
)
160 /sizeof(EVP_PKEY_ASN1_METHOD
*));
166 /* Find an implementation of an ASN1 algorithm. If 'pe' is not NULL
167 * also search through engines and set *pe to a functional reference
168 * to the engine implementing 'type' or NULL if no engine implements
172 const EVP_PKEY_ASN1_METHOD
*EVP_PKEY_asn1_find(ENGINE
**pe
, int type
)
174 const EVP_PKEY_ASN1_METHOD
*t
;
178 t
= pkey_asn1_find(type
);
179 if (!t
|| !(t
->pkey_flags
& ASN1_PKEY_ALIAS
))
181 type
= t
->pkey_base_id
;
185 #ifndef OPENSSL_NO_ENGINE
187 /* type will contain the final unaliased type */
188 e
= ENGINE_get_pkey_asn1_meth_engine(type
);
192 return ENGINE_get_pkey_asn1_meth(e
, type
);
200 const EVP_PKEY_ASN1_METHOD
*EVP_PKEY_asn1_find_str(ENGINE
**pe
,
201 const char *str
, int len
)
204 const EVP_PKEY_ASN1_METHOD
*ameth
;
209 #ifndef OPENSSL_NO_ENGINE
211 ameth
= ENGINE_pkey_asn1_find_str(&e
, str
, len
);
214 /* Convert structural into
215 * functional reference
226 for (i
= 0; i
< EVP_PKEY_asn1_get_count(); i
++)
228 ameth
= EVP_PKEY_asn1_get0(i
);
229 if (ameth
->pkey_flags
& ASN1_PKEY_ALIAS
)
231 if (((int)strlen(ameth
->pem_str
) == len
) &&
232 !strncasecmp(ameth
->pem_str
, str
, len
))
238 int EVP_PKEY_asn1_add0(const EVP_PKEY_ASN1_METHOD
*ameth
)
240 if (app_methods
== NULL
)
242 app_methods
= sk_EVP_PKEY_ASN1_METHOD_new(ameth_cmp
);
246 if (!sk_EVP_PKEY_ASN1_METHOD_push(app_methods
, ameth
))
248 sk_EVP_PKEY_ASN1_METHOD_sort(app_methods
);
252 int EVP_PKEY_asn1_add_alias(int to
, int from
)
254 EVP_PKEY_ASN1_METHOD
*ameth
;
255 ameth
= EVP_PKEY_asn1_new(from
, ASN1_PKEY_ALIAS
, NULL
, NULL
);
258 ameth
->pkey_base_id
= to
;
259 return EVP_PKEY_asn1_add0(ameth
);
262 int EVP_PKEY_asn1_get0_info(int *ppkey_id
, int *ppkey_base_id
, int *ppkey_flags
,
263 const char **pinfo
, const char **ppem_str
,
264 const EVP_PKEY_ASN1_METHOD
*ameth
)
269 *ppkey_id
= ameth
->pkey_id
;
271 *ppkey_base_id
= ameth
->pkey_base_id
;
273 *ppkey_flags
= ameth
->pkey_flags
;
275 *pinfo
= ameth
->info
;
277 *ppem_str
= ameth
->pem_str
;
281 const EVP_PKEY_ASN1_METHOD
* EVP_PKEY_get0_asn1(EVP_PKEY
*pkey
)
286 EVP_PKEY_ASN1_METHOD
* EVP_PKEY_asn1_new(int id
, int flags
,
287 const char *pem_str
, const char *info
)
289 EVP_PKEY_ASN1_METHOD
*ameth
;
290 ameth
= OPENSSL_malloc(sizeof(EVP_PKEY_ASN1_METHOD
));
295 ameth
->pkey_base_id
= id
;
296 ameth
->pkey_flags
= flags
| ASN1_PKEY_DYNAMIC
;
300 ameth
->info
= BUF_strdup(info
);
309 ameth
->pem_str
= BUF_strdup(pem_str
);
314 ameth
->pem_str
= NULL
;
316 ameth
->pub_decode
= 0;
317 ameth
->pub_encode
= 0;
319 ameth
->pub_print
= 0;
321 ameth
->priv_decode
= 0;
322 ameth
->priv_encode
= 0;
323 ameth
->priv_print
= 0;
325 ameth
->old_priv_encode
= 0;
326 ameth
->old_priv_decode
= 0;
328 ameth
->pkey_size
= 0;
329 ameth
->pkey_bits
= 0;
331 ameth
->param_decode
= 0;
332 ameth
->param_encode
= 0;
333 ameth
->param_missing
= 0;
334 ameth
->param_copy
= 0;
335 ameth
->param_cmp
= 0;
336 ameth
->param_print
= 0;
338 ameth
->pkey_free
= 0;
339 ameth
->pkey_ctrl
= 0;
345 EVP_PKEY_asn1_free(ameth
);
350 void EVP_PKEY_asn1_copy(EVP_PKEY_ASN1_METHOD
*dst
,
351 const EVP_PKEY_ASN1_METHOD
*src
)
354 dst
->pub_decode
= src
->pub_decode
;
355 dst
->pub_encode
= src
->pub_encode
;
356 dst
->pub_cmp
= src
->pub_cmp
;
357 dst
->pub_print
= src
->pub_print
;
359 dst
->priv_decode
= src
->priv_decode
;
360 dst
->priv_encode
= src
->priv_encode
;
361 dst
->priv_print
= src
->priv_print
;
363 dst
->old_priv_encode
= src
->old_priv_encode
;
364 dst
->old_priv_decode
= src
->old_priv_decode
;
366 dst
->pkey_size
= src
->pkey_size
;
367 dst
->pkey_bits
= src
->pkey_bits
;
369 dst
->param_decode
= src
->param_decode
;
370 dst
->param_encode
= src
->param_encode
;
371 dst
->param_missing
= src
->param_missing
;
372 dst
->param_copy
= src
->param_copy
;
373 dst
->param_cmp
= src
->param_cmp
;
374 dst
->param_print
= src
->param_print
;
376 dst
->pkey_free
= src
->pkey_free
;
377 dst
->pkey_ctrl
= src
->pkey_ctrl
;
381 void EVP_PKEY_asn1_free(EVP_PKEY_ASN1_METHOD
*ameth
)
383 if (ameth
&& (ameth
->pkey_flags
& ASN1_PKEY_DYNAMIC
))
386 OPENSSL_free(ameth
->pem_str
);
388 OPENSSL_free(ameth
->info
);
393 void EVP_PKEY_asn1_set_public(EVP_PKEY_ASN1_METHOD
*ameth
,
394 int (*pub_decode
)(EVP_PKEY
*pk
, X509_PUBKEY
*pub
),
395 int (*pub_encode
)(X509_PUBKEY
*pub
, const EVP_PKEY
*pk
),
396 int (*pub_cmp
)(const EVP_PKEY
*a
, const EVP_PKEY
*b
),
397 int (*pub_print
)(BIO
*out
, const EVP_PKEY
*pkey
, int indent
,
399 int (*pkey_size
)(const EVP_PKEY
*pk
),
400 int (*pkey_bits
)(const EVP_PKEY
*pk
))
402 ameth
->pub_decode
= pub_decode
;
403 ameth
->pub_encode
= pub_encode
;
404 ameth
->pub_cmp
= pub_cmp
;
405 ameth
->pub_print
= pub_print
;
406 ameth
->pkey_size
= pkey_size
;
407 ameth
->pkey_bits
= pkey_bits
;
410 void EVP_PKEY_asn1_set_private(EVP_PKEY_ASN1_METHOD
*ameth
,
411 int (*priv_decode
)(EVP_PKEY
*pk
, PKCS8_PRIV_KEY_INFO
*p8inf
),
412 int (*priv_encode
)(PKCS8_PRIV_KEY_INFO
*p8
, const EVP_PKEY
*pk
),
413 int (*priv_print
)(BIO
*out
, const EVP_PKEY
*pkey
, int indent
,
416 ameth
->priv_decode
= priv_decode
;
417 ameth
->priv_encode
= priv_encode
;
418 ameth
->priv_print
= priv_print
;
421 void EVP_PKEY_asn1_set_param(EVP_PKEY_ASN1_METHOD
*ameth
,
422 int (*param_decode
)(EVP_PKEY
*pkey
,
423 const unsigned char **pder
, int derlen
),
424 int (*param_encode
)(const EVP_PKEY
*pkey
, unsigned char **pder
),
425 int (*param_missing
)(const EVP_PKEY
*pk
),
426 int (*param_copy
)(EVP_PKEY
*to
, const EVP_PKEY
*from
),
427 int (*param_cmp
)(const EVP_PKEY
*a
, const EVP_PKEY
*b
),
428 int (*param_print
)(BIO
*out
, const EVP_PKEY
*pkey
, int indent
,
431 ameth
->param_decode
= param_decode
;
432 ameth
->param_encode
= param_encode
;
433 ameth
->param_missing
= param_missing
;
434 ameth
->param_copy
= param_copy
;
435 ameth
->param_cmp
= param_cmp
;
436 ameth
->param_print
= param_print
;
439 void EVP_PKEY_asn1_set_free(EVP_PKEY_ASN1_METHOD
*ameth
,
440 void (*pkey_free
)(EVP_PKEY
*pkey
))
442 ameth
->pkey_free
= pkey_free
;
445 void EVP_PKEY_asn1_set_ctrl(EVP_PKEY_ASN1_METHOD
*ameth
,
446 int (*pkey_ctrl
)(EVP_PKEY
*pkey
, int op
,
447 long arg1
, void *arg2
))
449 ameth
->pkey_ctrl
= pkey_ctrl
;